The fundamental cause of cellular carcinogenesis is the mutation of proto-oncogenes and oncogenes caused by oncogenic factors, leading to uncontrolled classification and growth of normal cells, which then become cancer cells.
Normally, under the action of environmental carcinogens, DNA damage in general cells will lead to metastasis and growth of progenitor cells. Therefore, during individual development, most cells can complete cell differentiation normally, while some cells cannot complete differentiation normally and become malignant proliferating cells that continue to divide and are not controlled by the body.
2. Generally cellular cancer can be related to primary causes as well as secondary causes. For example, lung cancer is usually associated with heavy long-term smoking, which is due to pharyngeal-induced changes in the constituent cells of the lungs. For example, cancer can also be related to human endocrine hormone levels, the environment, diet and even hereditary factors. Human genes contain oncogenes and oncogenes.